Traditional Spring Sash Windows - Double

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Traditional Spring Sash Windows - Double

Spring sash windows offer a cost-effective alternative to traditional box sash designs. They deliver classic style, but incorporate a simpler, more compact and modern spring balance mechanism in place of weights and pulleys.

In other respects, spring balanced sash windows display all the benefits of traditional timber sashes, with unrivalled quality, design and engineering.

Double-glazed as standard, they are available with safety glass, obscured glass, acoustic glass or solar control glass. Triple glazing is also available for larger contracts. Twin gasketing ensures reliable weather containment.

Platform Compatible Version Certified to
IFC IFC - 1 2.1
Revit Revit 2017 + 1 2.1

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Properties and values

IFC
IfcExportAs
IfcWindowType
IfcExportType
WINDOW
COBie
BOS_General
NBS_Data
AirPermeability
Class 4
ChildRestrictor
Angel lock standard, traditional sash stop optional
FrameProfileMoulding
Ovolo 1, ovolo 2, lambs tongue 1, lambs tongue 2
FrameStandard
55 x 160 mm
GlassTypeOptions
Safety glass, obscured glass, acoustic glass, solar control glass
Glazing
Double glazed, 4/16/4 low-E top sash ȓ 4 toughened/16/4 toughened bottom sash - standard, Ug-value: 1.1 W/m²K; g-value: 0.52
GlazingBeads
Internally beaded
Mechanism
Sashes are hung on pre tensioned constant force spiral balances
Mullion
110 mm wide (70 mm for triple sash with fixed outer sash)
Operation
SLIDINGVERTICAL
PerimeterSpacerBars
White warm edge perimeter spacer with white warm edge integral spacers - standard, silver and black spacer optional
Sash
39 x 55 mm top rail and stiles, 90 x 55 mm bottom rail, 45 x 55 mm meeting rail
SillProjection
35 mm, 50 mm, 60mm, 70 mm, 80 mm, 90 mm, 100 mm, 110 mm
TrickleVentilation
Concealed through frame head trickle ventilator, EA 1700, 4400, 5000 mm²
UValue
1.5 W/m²K
WaterTightness
Class 4A
Weatherseal
Double weather sealed
WindLoadResistance
Class C4
WoodMoistureContent
12 - 19%
Pset_DoorWindowGlazingType
Pset_WindowCommon

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